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<script>
	//关系运算符得到的结果布尔值
	console.log(3 > 5); //false
	console.log(3 > 1); //true
	console.log(5 == '5'); //true,先把后面的字符串的5隐式转换为number类型5
	console.log(1 == true); //true
	console.log(5 === '5'); //false  三个等号连类型也要一起比较
	console.log(5 != '5'); // false
	console.log(5 !== '5'); //true
	console.log('a' < 'b'); //true
	console.log('a' > 'A'); //true   a  > A > 1
	console.log('a' > '1'); //true   a > 1
	console.log('A' > '1');

	console.log(3 > 2 > 1); //在数学里是对的  但是JS里面呢？
</script>